<template>
    <div class="app-container">
      课程列表
  
      <!--查询表单-->
      <el-form :inline="true" class="demo-form-inline">
        <el-form-item>
          <el-input v-model="courseQuery.title" placeholder="课程名称"/>
        </el-form-item>
  
        <el-form-item>
          <el-select v-model="courseQuery.status" clearable placeholder="课程状态">
            <el-option value="Normal" label="已发布"/>
            <el-option value="Draft" label="未发布"/>
          </el-select>
        </el-form-item>
  
        <el-button type="primary" icon="el-icon-search" @click="getList()">查询</el-button>
        <el-button type="danger" @click="resetData() ">清空</el-button>
      </el-form>
  
      <!-- 表格 -->
      <el-table
        :data="list"
        border
        fit
        highlight-current-row>
  
        <el-table-column
          label="序号"
          width="70"
          align="center">
          <template slot-scope="scope">
            {{ (page - 1) * limit + scope.$index + 1 }}
          </template>
        </el-table-column>
  
        <el-table-column prop="title" label="课程名称" width="80" />
  
        <el-table-column label="课程状态" width="80">
          <template slot-scope="scope">
            {{ scope.row.status==='Normal'?'已发布':'未发布' }}
          </template>
        </el-table-column>
  
        <el-table-column prop="lessonNum" label="课时数" />
  
        <el-table-column prop="gmtCreate" label="添加时间" width="160"/>
  
        <el-table-column prop="viewCount" label="浏览数量" width="60" />
  
        <el-table-column label="操作" width="200" align="center">
          <template slot-scope="scope">

            <router-link :to="'/teacher/edit/'+scope.row.id">
              <el-button type="primary" size="mini" icon="el-icon-edit">编辑课程基本信息</el-button>
            </router-link>

            <router-link :to="'/teacher/edit/'+scope.row.id" >
              <el-button class="INFO" type="primary" size="mini" icon="el-icon-edit">编辑课程大纲息</el-button>
            </router-link>

            <el-button class="INFO" type="danger" size="mini" icon="el-icon-delete" @click="removeDataById(scope.row.id)">删除课程信息</el-button>
          </template>
        </el-table-column>
      </el-table>
  
    <!-- 分页 -->
      <el-pagination
        :current-page="page"
        :page-size="limit"
        :total="total"
        style="padding: 30px 0; text-align: center;"
        layout="total, prev, pager, next, jumper"
        @current-change="getList"
      />
  
    </div>
  </template>
  <script>
  //引入调用teacher.js文件
  import course from '@/api/teacher/course'
  
  export default {
      //写核心代码位置
      // data:{
      // },
      data() { //定义变量和初始值
          return {
            list:null,//查询之后接口返回集合
            page:1,//当前页
            limit:10,//每页记录数
            total:0,//总记录数
            courseQuery:{} //条件封装对象
          }
      },
      created() { //页面渲染之前执行，一般调用methods定义的方法
          //调用
          this.getList() 
      },
      methods:{
        // 删除课程
        removeDataById(courseId) {
                    this.$confirm('此操作将永久删除该小节记录, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    cancelButtonClass: 'cancelbtn',
                    type: 'warning'
                    }).then(() => { // 点击确定
                    course.removeListCourse(courseId)
                        .then(response => { // 删除成功
                        this.$message({
                        type: 'success',
                        message: '删除课程成功!'
                    });
                    this.getList() 
                        })
        
                })
        },
          //创建具体的方法，调用teacher.js定义的方法
          //讲师列表的方法
          getList() {
              course.getListCourse()
                  .then(response =>{//请求成功
                      //response接口返回的数据
                      this.list = response.data.list
                  }) 
          },
          resetData() {//清空的方法
              //表单输入项数据清空
              this.courseQuery = {}
              //查询所有讲师数据
              this.getList()
          }
   
      }
  }
  </script>
  
  <style>
  .INFO {
    margin-top: 15px;
  }
</style>
<style>
.cancelbtn {
  background-color: red;
}
</style>